Great Lakes Forecast
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FZUS63 KDTX 221350
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
950 AM EDT Tue Apr 22 2025

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...High pressure, 30.10 inches, will move across the
Great Lakes today. It will then hold nearly stationary over the
eastern Great Lakes tonight through Wednesday night while
strengthening to 30.30 inches. Low pressure is forecast to track
across the Ohio Valley and eastern Great Lakes Friday into Friday
night, brining a chance of rain to the region. High pressure will
then expand across the region from the north this weekend.

LCZ460-222200-
Lake St Clair-
950 AM EDT Tue Apr 22 2025

.REST OF TODAY...Northwest winds 10 to 15 knots backing to the
southeast late in the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...South winds 10 to 15 knots diminishing to 5 to 10 knots
late in the evening...then increasing to 10 to 15 knots after
midnight. Partly cloudy this evening becoming mostly cloudy. Waves 2
feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southeast 5 to 10
knots in the late morning and afternoon. Partly sunny. Waves 2 feet
or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Partly cloudy.
Waves 2 feet or less.
.THURSDAY...Southeast winds 5 to 10 knots backing to the east in the
evening. Partly sunny becoming mostly sunny in the afternoon
becoming partly cloudy. Waves 2 feet or less.
.FRIDAY...Northeast winds 10 to 15 knots. Mostly cloudy. Light
showers likely and a chance of thunderstorms. Waves 2 feet or less.
.SATURDAY...North winds 15 to 20 knots. Partly cloudy. A chance of
light rain and thunderstorms. Waves 1 to 3 feet.

$$

SC

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes